PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/10-21:57:50
G03     243.9          68.8                8.7 +/-    0.60       9.3 +/-    0.60  0.040 / 0.040
G09     304.7          22.5                9.2 +/-    2.39      19.0 +/-    2.39  0.040 / 0.040
G14     97.3           18.4               10.1 +/-    2.44      23.1 +/-    2.44  0.140 / 0.320
G16     123.5          58.0               12.6 +/-    0.26      14.6 +/-    0.26  0.120 / 0.270
G22     198.1          56.3               10.4 +/-    0.68      12.2 +/-    0.68  0.050 / 0.060
G23     318.5          48.3                8.6 +/-    0.86      11.1 +/-    0.86  0.040 / 0.060
G26     70.4           51.8                7.3 +/-    0.78       9.0 +/-    0.78  0.030 / 0.030
G31     52.1           20.1                7.9 +/-    3.24      17.4 +/-    3.24  0.030 / 0.030